This paper tests for both long run and short run market efficiency and unbiasedness in five agricultural futures markets. The possible existence of constant and time varying risk premia are taken into account using cointegration procedures and error correction models within a GARCH framework.

The study measures the extent to which farmgate price levels have effectively increased their degree of integration with world price movements following trade liberalization in Columbia. Results show that the extent of integration varies greatly depending upon the crop, and that market-specific...

The relationship between price volatility and competition is examined. A theoretic, vector autoregressions on farm prices of wheat and retail prices of derivatives (flour, bread, pasta, bulgur and cookies) are compared to results from a dynamic, simultaneous-equations model with theory-based...

The dominant trend in U.S. non-alcoholic consumption over the past two decades has been a steady increase in soft-drink consumption, largely at the expense of milk and coffee and tea consumption. Our analysis suggests that the primary factors affecting this is that the price, advertising, and...

The continued survival of the Baltic International Freight Futures Exchange (BIFFEX), based at the London International Financial Futures Exchange (LIFFE), has come as a surprise to many critics of this unique futures market (the only futures contract on a service). The level of trading activity...

Parametric and nonparametric market power tests most commonly used to assess imperfectly competitive behavior are identified. Monte Carlo experiments are used to assess the accuracy of eight nonparametric tests. The results are compared to Raper, Love, and Shumway's (1997) findings concerning...